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[common] add BinarySearch module and Stringfy (#7294)

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This commit adds set of generic binary search related functions in
OpenThread core under `BinarySearch` module. The binary search module
replaces and enhances the existing `Lookup` table module (which was
limited to search based on strings and mainly used by CLI to map from
command string to a handler function).

This commit also adds a new class `Stringfy` in `string.hpp` to help
convert from a set of `uint16_t` values (e.g., a non-sequential
`enum`) to strings using binary search in a table. The new methods are
used for converting `Coap::Code` and `IpProto` enumerations to
corresponding strings.
This commit is contained in:
Abtin Keshavarzian
2022-01-10 13:19:34 -08:00
committed by GitHub
parent 91d444c2c5
commit a4cba16c39
39 changed files with 409 additions and 517 deletions
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tests/unit/test_string.cpp
+7
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@@ -309,6 +309,13 @@ void TestStringToLowercase(void)
printf(" -- PASS\n");
}
static_assert(ot::AreStringsInOrder("a", "b"), "AreStringsInOrder() failed");
static_assert(ot::AreStringsInOrder("aa", "aaa"), "AreStringsInOrder() failed");
static_assert(ot::AreStringsInOrder("", "a"), "AreStringsInOrder() failed");
static_assert(!ot::AreStringsInOrder("cd", "cd"), "AreStringsInOrder() failed");
static_assert(!ot::AreStringsInOrder("z", "abcd"), "AreStringsInOrder() failed");
static_assert(!ot::AreStringsInOrder("0", ""), "AreStringsInOrder() failed");
} // namespace ot
int main(void)